Doorcheck



lJuneA 24, 1930. B. E. BYRD 766,011

DOQRCHECK Filed March 5, 1928 E TTORNEY .fas

Paf-enea June 4, 1930 B nrr'ronin. fiaYnirJLonfGAsroNIA,NoRTH (ninoLimil`,7.1; i

memoir g i 1 This invention 'is anpiniprvenient-'fin doorv cheeks, rand more particularly in checks for doorsof-light weightf ""'1 'f ber to another'througha'restricted opening, andV Wth'a 'by-pass Yfor purposesf'of, adjusb" 15 ment. Such checks-'offer :considerable-resistance-to 'the opening moveneiitfof the door," as Well as a brakingfresistance"tothe closing thereofJ-Wi *5" '`O ne of the primary objects of the present ab invention is the provision of asi1np1e,jineX-j pensive check, Ycapable 'of use with 'any type ofdoor, but particularly designed for doors rof light weight. i" .i fi i Another objectr is the vprovision of a ycheck wherein vfluids and'liquids are `dispensed 'with, springs beingy relied upon to fp'r'ovide the'required resistance. 1 ff" With thesef'andgo'ther objects fin viewthe invention consists in 4 i the f construction f and novelfcoinbinationfof partsully described hereinafter, illustratedv inthe aecompanying drawings, and 2 pointed-fout' in I the ellaiins ap# i pended hereto, it'bein understoodl'thatvariouschanges in the o'r1n,-proportion,size and' ininor details 'offic'onstru'etion' within the scope 'of .the claims, 'may vbefresi/orted to with; out departing from the spirit'of `thea invention.r v i v l In `the 'drawings forrninga part hereof flFig. lv isa'front elevationjof a partio a door and i its framing; provided "With the improved check'ff' f v l Figs. 2"and"3 'are "enlarged, sections taken 'on `the 1ines2 -'2 andi "respeetively, of

f *"Fi'gsjt vand Gfarefsection '(takenonythe lines and' 6-v6,y respectively of Fig." 3.'

Fig. k5 is a View siniilarto"Fig.l showing l 'the parts in another'position .f A p 50 Thepresentembodment 'of the lnvention is shownin connection with. a doorl l, mountdv ygroov'ed-"Wheel, is; pinned or otherwise s'eed inthe frame 2, both of usual construction,

' and theiinproved'check is arranged between the door'a'iid thevfraining atthefto'p. {The` check `comprises ar oase 3 of' substantially cylindrical i'orrn, having a'base4 vby means ofgwhich-itmay be secured to the-door, and

. within the case -isginounted a' spring- ',one

endof the spring being' connected'v toftheV I case, andthe other to a shaft 7 (Fig), c' whichshaft isfjournaled at the Vaxis "offthe case. 5 y f" f f vA head 9, in .the fornioi' a lperipherally cured to the top: ofthe shaft 7 the said shaft 'extending well above the case 4,- andva :mei

tallicV ribbon l0 is arranged .inl the groov'eto Wind upon tliewh'eel. A

' The ribbon is ysecured to the'wheel-atf-'one end by the pinS which Connects the wheel 5% to the-shaft, and the otherend isconnected to a bracket 11 which is secured`l tothe door frainefin;v any1 suitable manner'. :The spring 5= isy arranged vto wind up* theV ribbon `107on the Wheel,and` it will be apparent that'when the door is opened, the 1'ribbon will belwithl drawn from the vwheel, and thefshaft 7 lwill.kv be rotated 'in adirection to put the sprin'gf' under tension, that-isg-to'eause the-spring to assist the closing movement ofthedoor: Aslotted arm 13 is pivotally connected-at one end toja bearing lug "14 securedqto' the door frame on thevop'po'sitev side of the case 3'froinfthejconnection of thefribbon'3,jand

the 'shaft 7 passes through the slotg 1 5 of the i,

`shaft just above the arm, and the disk has'a pairof arc shaped tongues `17, 'struckif'up from the material of the disk, `and upwardly bent asfshown'morepartieularly infEig 3,

so that the free ends of the tongues-liejabeve i and 'theyarearranged ett-radialy distances from thefaXisI-ofthe shaft,corresponding'to f thed1stance*at which 'fthe' tongues `1 7f'- are spacend,` from-*the said axis: Itg Willbeflbo v vbraking action-on the-closing movements() *Y Vnoticed `referring to 3, 4 and 5, that the tongues are arc shaped longitudinally,

beingv formed Yon arcs. coaxial With the lshaft 7.

. Duringfthe `rotation Yof theffshaft V7 'in either direction, the pins Y19 niovelin a circle' Y in-Which thetongue n 17 are arranged, and

upontherdisk:16.and thus abrakingaction increasingfpressure' will belbroughtto bear Will beexertedonjthefrotationof the-shaft,

Y Y that isi'upoii the stress lWhich tendsstoiclose Y the door.

I' when the door is'opening,vv the pinswill y move toward the rlips 18, as Vshown i inFig. Y n e :5, 1a1id will engage the lips, and Willl cause,v e, g

theJdiskv to rotate clockwise, nso that there is, no downwardV pressure on the disk, and

` `no braking tendency.

j Thus no opposition is offered-tothe open-y Ving of the door, except the increasing'ten` sion yof the spring V,5,- but when thewdoor .isv

released, and the `fullqi'orce of the springacts to close the saymeytheengagement beltweenthe pins 19 and the tongue Y`17; takes P13106 'at an' early stage ofthe closing movement, and graduallyv exerts an increasing Y that thedooris-ftightly and eiciently closed1wth0ut however', anyfslem 0r Jarff The ,improved checkfis simple andinexpensive.,v Nok regulation visjrequired otherV v thanthe s'ettingofy the pins 19, andthe pins,

l as clearly-'shown in Fig'. J3,I have threaded Y- may "engagement with theheed', Ifl Order to` enable l vertical adjustmentig; Preferably aV Washer 20 is -arrangedin the :casing above the spring 5, asshovvn in Fig. 3, The heck v *tt-)Qhold lthe doorfopen, by zadjustingthe brakeY screws tofprovifde more'frictionthan toY the spring Willovercome, in which case the door Willi stand 'substantially [at ythe position in which it is placed, yWhile'at the same timefit maybe moved to Vopen or closed v position 1 g5 Whatqs claimed as new i I. V.1. A- door check including a shaft, a spring Yconnected Witlrthe shaft to rotate `it lin one i `elirectioma flexible imember havingY at one end ,means `fer .Connestefil lwith fthe, door 'frame and .connected at the @theme the to be unwound therefrom when the y door is, opened, thereby to tension the spring,

' -fandto be Wound thereon by `the spring thereby to;V closeithedoor, a slotted guide ermfghavng meses if0.1 rvotalfwmwcton e ribbon ljOzis4 unwinding, that isl be LalsoV utilized to serve as; arscotch -With the frame, the shaft passing through the slot, a brake disk loosely Inoun't'edgonV the shaft andresting on the'arm,and means in connection with the v shaft and thel disk cooperating to press the disk tovvardythe arm-when the 'shaft is rotated 'under the influence of the spring, and inoperative toexert pressure When lthe` shaft is rotated Y under ythe influence of the iexibleniember.

' 2i. A door check including a shaft, a spring iconnectedlivvith .the-.shaft-to rotate it in one direction,VV a flexible member having at one Vframe rand connected at the `other to the;

shaft" to1 be'unlvvound therefrom When' the door; is opened, thereby to tensionh'spring,

and to be Wound ythereon'bythe, spring thereby to close the door,1a slotted guide,

arm having meansgforl-pivotal connection with the frame, the shaft passing 'through in; connection VWith `the shaft andthe disk cooperating'- to press the disk toWard'f the arm LWhen the shaft is Vrotated v under the influence of. the spring, and inoperative., to

exert pressure krwhen the shaft is rotated H e5.Y Y I the slot, av brakediskl loosely mountedonf i vthe Vshaft and restingondthe farm, means under the influence oftheflexiblemember,

and 'means .to regulateQthe pressure exerted onfthe disk.

- 3. A'door checkincluding-ashaft,

connectedvvith the shaft to rotatefit inzone Y direction, a flexible meniber'having 'atone end meansfor connectionV With a door frame v and v c'ormected at( the other lto theshaft vto be Wound thereonvvhen the shaft is rotated by the-Sprnefthfeby be Close the dbox.; l f

and to Ybe unvvound therefromV when the door's1opendhefeby-@O fensnlthe Springs. a slotted guide arm having means-for pivotal connection vviththe frame,the vshaft pass; ing through Ythe slot, .afbrake diskl'looseiy mounted onthe shaftf :and resting vfon ftheV arm, andmeans in connection rwith the shaft andthe disk, cooperating lto Y press the f disk toward the arm Whenjt e 'shaft isrotated.V

under *theinfluence of the, spring, and in- .i

Voperative to exert;lpressureeyvhen tlfefshaft "f yi o is rotated under thefinfluence of the Vflexible Y H5` nri'ember,` said V last .named meansn including a vvheely secured tothe Vshaftfupon'which the Vflexible member AWinds,"pins connected .to the Wheel and axially adjustable thereof, the

disk having are shaped resilientV tongues in- 1.20Y i clining upwardly from'thejface-thereof Y and in the line of movement, of, the pins.

4. A door check'ncluding awheelyhavf:

ing means for vrotatably.connectingy it 'tof a door, a flexible lmember connected tof-fthe Wheel at one fendA to vWind thereon, and halv `ing means `jat the otherA end .for s connection With a doorframe, aspiring acting nermally o 'tomate the when in@ direction@ Windup Y the flexible member, a brakefdisk" mounted coaxial .withihe Whelaeed. meuble axially with respect thereto, a member having means for pivotal connection With the frame, slidable with respect to the disk and with which vthe diskeooperates,yand Vpins connected with the Wheel and axially adJustable thereof, the

Y disk` having arc shapedresilient tongues inolining upwardly from the face thereof and in the line of movement-of the pins tobe Y engaged thereby. o f Signed atGastonia, in the County loiI' Gaston and State of North Carolina' this eighth day of February, A. D. 1928. Y v BRITTON E. BYRD. 

